Cutler-Hammer Slide Chart Motor Control Selector. Second edition April 1957. LIKE NEW, appears unused.
Three Phase and Single Phase Motor Data. 
Slide setting Phase, Motor HP, and Voltage. Chart will give you catalog numbers for starters, magnetic, Non-reversing, manual non-reversing, and magnetic reversing. As well as heater coil protection. Size Safety Switch. Give Full Load Current. Fuse Size in Amps.
Maximum Breaker Size, as well as minimum wire size.
Please be aware of USPS shipping cost increase as of July 9th. See my other unique oat auction.